diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 61d62b0..932482b 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -219,8 +219,8 @@
     static uint32_t getStrategyForStream(audio_stream_type_t stream);
     static audio_devices_t getDevicesForStream(audio_stream_type_t stream);
 
-    static audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc);
-    static status_t registerEffect(effect_descriptor_t *desc,
+    static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
+    static status_t registerEffect(const effect_descriptor_t *desc,
                                     audio_io_handle_t io,
                                     uint32_t strategy,
                                     int session,
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
index bdc12db..fb556af 100644
--- a/include/media/IAudioPolicyService.h
+++ b/include/media/IAudioPolicyService.h
@@ -79,8 +79,8 @@
                                           audio_devices_t device) = 0;
     virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
     virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
-    virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc) = 0;
-    virtual status_t registerEffect(effect_descriptor_t *desc,
+    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
+    virtual status_t registerEffect(const effect_descriptor_t *desc,
                                     audio_io_handle_t io,
                                     uint32_t strategy,
                                     int session,